Learn how to find the 40th term of the arithmetic sequence

The video tutorial explains how to identify the common difference (D) in a sequence by subtracting terms. It demonstrates the calculation of D using specific examples and guides viewers through finding the 40th term in the sequence. The tutorial emphasizes the importance of understanding the process, especially when the difference is not obvious.

What is the first step in identifying the common difference in an arithmetic sequence?

• Subtract the first term from the second term

• Divide the first term by the second term

• Multiply the first two terms

• Add the first two terms

In the example provided, what is the value of the second term (A2)?

• 5

• -14

• -19

• 19

What is the calculated common difference (D) in the example?

• 5

• -5

• 14

• -14

Which formula is used to find the 40th term in the sequence?

• A1 / n + D

• A1 - (n - 1) * D

• A1 * n + D

• A1 + (n - 1) * D

What is the value of the 40th term in the sequence?

• 19

• 195

• 176

• -19